As temperatures have climbed in various parts of California, so have gas prices, two Internet pricing sources reported.
Many motorists are paying about 12.3 cents more for gasoline than they did last week, according to Gasbuddy.com, an Internet gas survey site.
California's average gasoline prices are $4.16 per gallon, about a half-dollar more than what motorists nationwide, on average, pay.
Vallejoans, on average, are paying $4.04 per gallon -- 20 cents more than what they were paying last month, reported AAA Northern California on its website.
But, motorists here still find plenty of places to buy gasoline in which the price is below the $4 mark.
In Vallejo, Quik Stop at Springs Road and Maple Street is selling gas for $3.81 per gallon while the price is $3.83 at both the Bonfare on Sacramento Street and Costco.
In Benicia, the cheapest gasoline is $3.89 at Bob's Liquor, West J and West Fifth streets.
GasBuddy.com Senior Petroleum Analyst Patrick DeHaan attributed the higher prices to refineries converting to summer gasoline blends.